CN1115939C - Method for reconnection of a dropped call in mobile communication system - Google Patents
Method for reconnection of a dropped call in mobile communication system Download PDFInfo
- Publication number
- CN1115939C CN1115939C CN99802621A CN99802621A CN1115939C CN 1115939 C CN1115939 C CN 1115939C CN 99802621 A CN99802621 A CN 99802621A CN 99802621 A CN99802621 A CN 99802621A CN 1115939 C CN1115939 C CN 1115939C
- Authority
- CN
- China
- Prior art keywords
- service
- call
- msc
- communication link
- calling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0025—Provisions for signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13098—Mobile subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13103—Memory
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13176—Common channel signaling, CCS7
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13204—Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1327—Release and resetting of connection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Reconnection of a dropped call in a mobile communicating system. In the situation that a call drop occurs and a call is to be disconnected during a call service, a mobile station is informed of the call drop and the call is reconnected or disconnected according to a response of the mobile station without being released by a unilateral decision by a system. Furthermore, when the call drop occurs, the mobile station searches for an available channel and requests a call reconnection to the system.
Description
Background of invention
1. field of the present invention
The present invention relates generally to wireless communication field, be specifically related in mobile communication system, reconnect the method for call drop.
2. description of Related Art
In public land mobile network (PLMN), base station under the radio environment and travelling carriage are interconnective.In some cases, because the physical features of environment has a negative impact to the propagation of radio signal, just can not provide enough call service in the blind area.And, in the time of when terminal use's walking or on the means of transportation that moves, temporary transient call drop phenomenon also can take place.
According to traditional technology, when (1) in the blind area temporary transient call drop takes place when the physical features owing to environment; (2) under unusual handover case; (3) when power control generation problem; Although travelling carriage will be proceeded to call out, system all can disconnect calling.
More particularly, if in the blind area or because the physical features of environment, call drop has continued a predetermined period of time, and just having determined can not provide call service again and can discharge this calling.In IS-95, the scheduled time is approximately 5 seconds (promptly equaling frame period 20ms * 270).Under this non-calling release conditions of having a mind to, calling party must be called out the called party as much as possible, thereby recovers to call out.
If between travelling carriage during the handover and base station service obstacle has taken place, and travelling carriage keeps communication link, so will be by old base station executive control operation, at this moment, though contiguous base station has good signal communication environments, it can cause the disconnection of communication link.
The enforcement of the power control between base station and the travelling carriage is very responsive, especially in cdma system.Because the signal that sends from specific travelling carriage and specific base stations is considered to the noise signal to other travelling carriage and base station, institute is so that transmitted power reaches minimum is very important.Thereby when the base station is judged unreliable power control meeting in the specific travelling carriage cause call drop in system, it will disconnect calling at once, thereby eliminate the call drop source.
The present invention's general introduction
An object of the present invention is, provide a kind of in mobile communication system, improve the method that the calling when call service disconnects.
Another object of the present invention is, according to the response of travelling carriage in consulting, provides a kind of processing to drop and the method for the calling that will be disconnected.
Another object of the present invention is that a kind of method that prevents that unnecessary calling from disconnecting is provided.Wherein, prevent that the calling of unnecessary system from disconnecting and detecting the response of travelling carriage, this unnecessary calling disconnection is that its unusual folk prescription decision is carried out according to relevant radio channel.
Another object of the present invention is that a kind of method that keeps call service is provided.Wherein, when in radio environment, detecting when unusual, the signal communication environments that the travelling carriage search is new, and request reconnects existing calling with the base station system that can be used for communicating by letter.
Another object of the present invention is, provides a kind of and occurs when unusual when forward direction and backward channel, reconnects the method that keeps call service by what request and available channel were called out.
In brief, these and other objects are adopted in the following method and are realized, this method reconnect when MS user and and the user that communicates by a mobile communication system of MS user between viability, the communication link that interrupts by service obstacle, wherein, this mobile communication system has a plurality of mobile switching centres (MSC) that connect one to one, and each MSC links to each other with a plurality of base stations.In the method, when the viability between user of mobile station and other user, travelling carriage receives about the position of MS and calls out the information that is connected from base station and the MSC that links to each other with travelling carriage, stores the information that receives.If service obstacle has continued at least one first predetermined period of time, travelling carriage will send the location of mobile station of storage and call out the information that connects so.Wherein, communication link information comprises the information about the sub-district of the current MSC that is connected to the current BS that service is provided and the current BS that service is provided.
Brief description of drawings
By reference accompanying drawing and following detailed description, will more be expressly understood above and other objects of the present invention, feature and advantage, in the accompanying drawing:
Fig. 1 is the block diagram that the demonstration example in the mobile communication system of the embodiment of the invention is used in expression;
Fig. 2 represents that originating call is set up the flow chart of process according to embodiments of the invention;
Fig. 3 represents that the flow chart of process is set up in end call according to embodiments of the invention;
Fig. 4 be expression according to embodiments of the invention, reconnect the flow chart of process according to the calling of the order of system;
Fig. 5 be expression according to embodiments of the invention, reconnect the flow chart of process according to the calling of the request of travelling carriage;
Fig. 6 A is the form that request for allocation (Assignment Request) signal has been described, this signal comprises unit MSC Call_ID;
Fig. 6 B represents according to embodiments of the invention the detailed description of the structure of the MSC Call_ID shown in Fig. 6 A;
Fig. 7 is that expression is according to embodiments of the invention, according to calling out the flow chart that reconnects control operation in the travelling carriage of the order of system;
Fig. 8 represents according to embodiments of the invention, according to the order of system, in system (BSS and MSC) control operation, calls out the flow chart that reconnects control operation;
Fig. 9 represents that according to embodiments of the invention, when the travelling carriage request reconnected calling, the calling in the travelling carriage reconnected the flow chart of control operation;
Figure 10 represents according to embodiments of the invention, when the travelling carriage request reconnects calling, in system (BSS and MSC) control operation, calls out the flow chart that reconnects control operation;
Figure 11 is the demonstration example of additional (the asking for an interview label 620) of the existing command messages of expression;
Figure 12 is the state transition graph that the expression traditional calling is handled; With
Figure 13 represents according to embodiments of the invention the state transition graph of call treatment.
Detailed description of preferred embodiment
The preferred embodiments of the present invention are described below with reference to accompanying drawings.In the following description, do not have to describe the function or the structure of generally acknowledging in detail, obscure the present invention to avoid unnecessary details occurring.
Term and definition:
" ongoing call service ": the state that data communication such as Speech Communication and rest image, moving image are being carried out.
" call drop ": be meant the calling that can not be the more temporary transient or permanent call service that keeps provides.Noise or other disabled service status that (unidirectional and two-way) calls out on disconnection or the particular channel all may cause call drop.
" call out and disconnect ": be meant the state that continues a scheduled time that disconnects of calling out.
Embodiments of the invention the general exemplarily be described according to the content of North America digital mobile communication system standard (IS-95, IS-634 and IS-41 series).The present invention also can be used for 3G (Third Generation) Moblie, and (CDMA2000, UMTS), 3G (Third Generation) Moblie can provide the Additional Services that (Internet) browses of high quality speech, high-speed data, moving image and internet.
With reference to Fig. 1, adopt mobile communication system of the present invention to comprise that HLR (attaching position register 80), MSC (mobile switching centre) MSC0 70a and MSC1 70b, BSC (base station controller) BSC00 64a, BSC0164b and BSC10 64c, BTS (base station transceiver subsystem) BTS000 62a are to BTS101 62f and MS50.A plurality of HLR and MSC interconnect in PLMN, switch thereby carry out user management and call out.As shown in Figure 1, single HLR 80 links to each other with MSC1 70b with a plurality of MSC MSC0 70a.Each MSC links to each other with a plurality of BTS successively, and each BSC links to each other with a plurality of BTS.BS normally is made up of BSC and BTS.
MSC controls to being connected of PSTN (public switched telephone networks network) and PLMN.BSC controls radio link, and carries out handover, and BTS forms radio link and the managing radio resources that links to each other with MS, and HLR is user's location register, and stores user's information as database.Each MSC has VLR (visitor location register), is used for the information that temporary transient storage enters the MS of MSC service area.If MS has entered other service area, will abandon this canned data so.
In order to set up calling, mobile communication system is distributed radio channel between MS and BTS, between BTS and the BSC, between BSC and the MSC and between MSC and PLMN or external network such as the PSTN, forms communication link.If because MS is in the blind area or because the feature of radio environment, the calling of foundation can not keep a scheduled time, mobile communication system will disconnect calling usually so.The problem of blind area may be caused by a lot of situations, for example comprises, elevator, do not have to interrupt the tunnel, is positioned at long tunnel between each adjacent cell or the blind area between intensive skyscraper.
The call drop that defines in the embodiment of the invention may take place in label 10,12, the 14 and 16 indicated positions of Fig. 1.
According to embodiments of the invention, in mobile communication system, when during the service obstacle situation (1) of narration in front, the call service under (2) and (3) during the generation call drop, to notify MS to call out loses, and before system discharges this calling according to the response of MS to call drop, reconnect or disconnect calling.
Fig. 2 and Fig. 3 have illustrated the signal flow that is used to set up originating call and end call according to the embodiment of the invention respectively.With reference to Fig. 2, according to the process of setting up of the originating call of embodiments of the invention to traditional similar.The difference of the former with the latter is that (1) MSC has added unit MSC Call_ID sending on the request for allocation signal of BSS, is used to discern MSC and calls out.The request for allocation signal that contains MSC Call_ID is shown in Fig. 6 A and 6B; And (2) BSS has added Call_ID (MSC and BSS) sending on the channel assignment message signal of MS, and wherein, Call_ID (MSC and BSS) is the combination that the MSC Call_ID that receives from MSC and being used to discerns the BSS Call_ID that BSS calls out.Structure and Fig. 6 A and signal shown in Fig. 6 B similar that contains the channel assignment message signal of Call_ID (MSC and BSS).
MS will be stored in its memory from Call_ID (MSC and BSS), network ID N_ID and the Cell_ID that BSS receives when call setup.According to reconnecting call request, information is sent to system, what be used to call out reconnects.That is to say that N_ID, the Cell_ID and the Call_ID (MSC and BSS) that are stored among the MS have the value that is used for initialized call setup.Here, N_ID has pointed out which MSC MS belongs to, and Cell_ID has pointed out which sub-district MS belongs to, and Call_ID (MSC and BSS) is the ID that is used for the connection calling of MS in calling out in being connected of MSC and BSS.In the present invention, can not adopt reconnecting that Call_ID (MSC and BSS) calls out, but in this case, need MSC to be connected contingency table by calling with reference to them with BSS, search for corresponding M S, search for MS thereby wasted the long relatively time.Therefore, the preferred embodiments of the present invention will be described according to the content of the situation of using Call_ID (MSC and BSS).
With reference to Fig. 3, the process of setting up according to the end call of embodiments of the invention is to traditional similar.For call out stopping, find the description of the difference that the difference of the present invention and prior art can start from relevant calling.
According to embodiments of the invention, in Fig. 2 and Fig. 3, the request for allocation from MSC to BSS comprises MSC Call_ID.Fig. 6 A and Fig. 6 B have illustrated the structure of request for allocation and MSC Call_ID respectively.
The request for allocation signal that IS-634 provides comprises the information unit that is indicated by label 600 among Fig. 6 A.In embodiments of the present invention, request for allocation also comprises the information unit MSC call identification that is indicated by label 610.With reference to Fig. 6 B, the MSC call identification is made up of element identifier (element ID) (one eight bit) and Call_ID (four eight bits).
It is structurally similar to the request for allocation that comprises MSC Call_ID (MSC and BSS) to send to the channel assignment message signal of MS by BSS in Fig. 2 and Fig. 3, on forming, the MSC Call_ID (four eight bits), the Cell_ID (two eight bits) that is used to discern the BSSCall_ID (four eight bits) of BSS calling and is used to discern current area that receive from MSC on existing message, have been added.
In Fig. 2, send to originating information signal and the request for allocation signal similar of BSS by MS, on forming, MSC Call_ID (four eight bits), BSS Call_ID (four eight bits), Cell_ID (two eight bits) and N_ID (two eight bits) on existing message, have been added.
In order to judge whether MS asks to reconnect calling, BSS detects in the above-mentioned additional information unit the originating information that receives from MS, as the Call_ID (MSC and BSS) of the combination of MSC Call_ID and BSS Call_ID.For example, in an embodiment of the present invention, if Call_ID (MSC and BSS) is 0xffffffff, originating information is normal source signal so, if Call_ID (MSC and BSS) is other value, so, originating information is used for reconnecting of signal.
Fig. 4 represents in an embodiment of the present invention, when system command reconnects calling, calls out the flow chart that reconnects processing.And Fig. 5 represents in an embodiment of the present invention, when the MS request reconnects calling, calls out the flow chart of the process that reconnects.
Fig. 7 represents in an embodiment of the present invention, when system command reconnects calling, calls out the flow chart that reconnects processing among the MS.And Fig. 8 represents in an embodiment of the present invention, when system command reconnects calling, calls out the flow chart of the process that reconnects in the system (BSS and MSC).Fig. 9 represents in an embodiment of the present invention, when the MS request reconnects calling, call out the flow chart of the process that reconnects among the MS, and Figure 10 represents in an embodiment of the present invention, when the MS request reconnects calling, call out the flow chart of the process that reconnects in the system (BSS and MSC).
To Figure 10, will reconnecting of call drop be described with reference to Fig. 2 according to embodiments of the invention.
In conjunction with Fig. 4,7 and Fig. 8 describe before the calling carry out based on system command when call drop mainly occurs on the backward channel reconnects, at first explanation, in when, in corresponding BSS call drop taking place when, what upper strata MSC nonintervention was called out reconnects, but, when other MSC sent the request that reconnects calling, what upper strata MSC then participated in calling out reconnected.
When the reverse traffic channel that is used for call service of having set up calling and current use had disconnected, BSS judged to call out whether lose in step 800 shown in Figure 8.As U.S. Patent application No.09/294, described in 046, if on the current business channel, not receiving frame as yet in a scheduled time (1 to 10 second), BSS just thinks that calling loses so.The scheduled time is preferably the hundreds of millisecond.
Behind the call drop that detects on the current business channel, BSS with the interval of each T-Val, sends search request signal to MS in step 802 shown in Figure 8 at the fixed time.The scope of the value T-Val1 of timer is 1 to 10 second, preferably 1 to 2 second and change with system operating state and the user characteristics that is used for the operator.Search request signal is the message that request MS checks.According to embodiments of the invention, the existing command messages of asking to MS is used as search request message.Figure 11 be expression according to embodiments of the invention, the demonstration example of existing command messages and the additional command that indicates by label 620.Additional command is represented the inspection request of sending to system.
In the step 802 of Fig. 8, when first search request signal sent to MS, BSS activated the T-Val2 timer.The value T-Val2 of timer has indicated the operate time of definite release signal, that is to say, when BSS does not receive counterweight recurrence when giving the response of search request signal of MS, should disconnect total signal.The scope of T-Val2 is 5 to 60 seconds, preferably 10 seconds, and change with system operating state and the user characteristics that is used for the operator.
Simultaneously, in the predetermined time cycle, receive search request signal n time after (n is a natural number) from BS, MS carries out reconnecting of signal in step 700 to 706 shown in Figure 7 to the BSS request.N is the reference number of being calculated by counter cnt 1, after being used for MS and receiving search request signal from BSS, sends originating information and reconnects calling with request.N is preferably 1 to 3.Because MS and do not know that channel disconnects when reverse traffic channel disconnects, so MS counts when receiving search request signal at every turn, and after receiving this signal 1 to 3 time, just think that the signal that receives is the search request signal that is used to ask to reconnect calling, thereby check whether the search request signal that receives from BSS is valid data.
Then, MS sends originating information (reconnecting request) in step 706 shown in Figure 7 to BSS, is included in N_ID, the Cell_ID and the Call_ID (MSC and BSS) that are stored in when originated call is set up among the MS.If MS is in step 707 shown in Figure 7, at a predetermined period of time, do not receive response signal n time that is used to reconnect calling, it will be at step 710 call release shown in Figure 7 so.
Simultaneously, BSS judges whether received originating information (reconnecting request) from MS before the T-Val2 timer overflows in step 804 shown in Figure 8.After receiving originating information (reconnecting request), BSS and MSC be in step 806 shown in Figure 8, according in the originating information (reconnecting request) about the information of N_ID, Cell_ID and Call_ID (MSC and BSS), reconnect calling.That is to say that BSS and MSC rebulid communication link for the calling that stops.If reception is different with the system that sets up initial call about the system (MSC and BSS) that calling reconnects signal, will adopt handover to reconnect calling so, discharge previous communication link then.For example, when reconnecting call request and occur among the same BSS, will discharge previous MS-BTS radio link or previous MS-BSC radio link.If but reconnected the MSC of call request from other, previous BSS-MSC radio link so also will be discharged.
If BSS does not receive the request of reconnecting from MS, then BSS will carry out normally by calling out the dispose procedure that disconnection causes in step 808 shown in Figure 8.
In step 806 shown in Figure 8, receive about behind the signal that reconnects from the BSS that reconnects communication link, MS reconnects process at step 708 executive communication link shown in Figure 7.
Describe when call drop mainly takes place on the forward link below in conjunction with Fig. 5,9 and 10, the calling of carrying out based on the request that reconnects calling of MS reconnects.Here, it should be understood that what upper strata MSC did not participate in calling out reconnects when in corresponding BSS call drop taking place, still, when other MSC sent the request that reconnects calling, what upper strata MSC then participated in calling out reconnected.
Set up and the forward traffic channel that is used for call service (calling) of current use when disconnecting when signal, MS judges to call out whether lose in step 900 shown in Figure 9.As U.S. Patent application No.09/294, described in 046, if on the current business channel, (1 to 10 second) does not receive frame at the fixed time, and MS just thinks to call out and drops so.The scheduled time is preferably the hundreds of millisecond.
After the call drop situation that has detected the current business channel, MS adopts its inner searcher in step 902 shown in Figure 9, detects available BTS radio resource, thereby finds out can the offer the best new channel of connection signal of current location search for MS.
Then, MS is in step 904 shown in Figure 9, by detected new channel, reconnect request signal originating information (reconnecting request) to the BSS transmission, be included in N_ID, the Cell_ID and the Call_ID (MSC and BSS) that are stored in when initial call is set up among the MS.
In step 1000 shown in Figure 10, BSS judges whether to receive originating information (reconnecting request) from MS.After receiving originating information (reconnecting request), BSS and MSC be in step 1002 shown in Figure 10, according in the originating information (reconnecting request) about the information of N_ID, Cell_ID and Call_ID (MSC and BSS), reconnect the calling of termination.That is to say that BSS and MSC rebulid communication link for the calling that stops.If reception is different with the system that sets up initial call about the system (MSC and BSS) that calling reconnects signal, will adopt handover to reconnect calling so, discharge previous communication link then.Under the situation of same BSS, only discharge MS-BTS radio link or previous MS-BSC radio link.On the other hand, if another MSC request reconnects calling, so also to discharge the BSS-MSC radio link.
In step 906 shown in Figure 9, receive about behind the signal that reconnects from the BSS that reconnects communication link, MS goes back the executive communication link in step 908 shown in Figure 9 and reconnects process.On the contrary, if in step 906 shown in Figure 9, MS does not receive the relevant signal that reconnects from BSS, and MS carries out traditional calling dispose procedure in step 910 shown in Figure 9.
Figure 12 and 13 represents to be used for the state transition graph of call treatment in the prior art according to embodiments of the invention.As shown in Figure 9, according in the given time call release request or call drop during calling out,, in the prior art, directly enter (call out and the disconnect) state that discharges of calling out as 5 seconds.As shown in figure 13, compared with prior art, behind the very first time (as the hundreds of millisecond) call drop, the present invention enters stand-by state and reconnects request with Waiting for Call when call service, and, stand-by state is converted to dialogue state according to the request that reconnects calling.But,, will enter release condition if call drop continued for second scheduled time at stand-by state (being preferably 30 to 60 seconds).If in dialogue or stand-by state, ask call release, so directly enter release condition.
According to the invention described above, when call drop and bid taking place during call service disconnect, just notify MS that call drop has taken place, and call out the unidirectional decision of not following system and disconnect, reconnect/standby/release condition but enter according to the response of MS.In addition, when call drop took place, MS can search for available channel and to reconnecting that system request is called out.Therefore, by limiting unnecessary call drop, can improve quality of services for users.
Although the present invention describes with reference to its specific preferred embodiment, but it should be appreciated by those skilled in the art, under the situation that does not break away from the specific spirit and scope of the present invention that are defined by the following claims, can carry out the various modifications of form and details to it.
Claims (13)
1. method that reconnects the communication link of termination, described communication link is the viability that communicates when travelling carriage (MS) user and the user who communicates by letter with described user of mobile station by mobile communication system, stop by the interruption in the service, described mobile communication system has a plurality of mobile switching centres (MSC) that connect one to one, each MSC links to each other with a plurality of base stations (BS), and described method comprises the following steps:
When carrying out viability between MS user and other user, the BS that from a plurality of BS one provides service and the MSC that is connected to the BS that service is provided receive the information of relevant communication link, and the described communication link information that receives is stored by MS; With
When service disruption continues at least the first predetermined period of time, send the communication link information of storage from MS;
Wherein, communication link information comprises the information about the sub-district of the current MSC that is connected to the current BS that service is provided and the current BS that service is provided.
2. the method for claim 1, wherein first predetermined period of time is the hundreds of millisecond.
3. the method for claim 1, wherein when setting up service for initialization, communication link information comprises at least about the MSC that is connected to the BS that service is provided and the information of sub-district that the BS of service is provided.
4. the method for claim 1, wherein said forwarding step comprises:
When the service disruption on the backward channel continued at least the first predetermined period of time, MS received searching request from the BS that service is provided; With
When BS receives described searching request, send the communication link information of being stored from MS.
5. method as claimed in claim 4 wherein, sends at least searching request to MS.
6. method as claimed in claim 4, wherein, searching request sends predetermined times at every predetermined time interval to MS.
7. method as claimed in claim 6, wherein, predetermined time interval is 1 to 2 second.
8. method as claimed in claim 4, wherein, after receiving the searching request predetermined times from the current BS that service is provided, MS sends the communication link information of storage.
9. method as claimed in claim 4, wherein, the command messages from BS that service is provided to MS is as described searching request.
10. method as claimed in claim 4, wherein, if described MS does not receive search request signal in the given time, then described MS discharges service.
11. method as claimed in claim 4, wherein, if after providing the BS of service to send searching request, in the cycle, the current BS of call service that provides does not receive communication link information from described MS at preset time, then provides the BS of service to discharge service.
12. method as claimed in claim 11, wherein, the scope of predetermined period of time is 5 to 60 seconds.
13. the method for claim 1, wherein said forwarding step comprises:
When the service disruption on the forward direction link continued at least the first predetermined period of time, MS detected available BS radio resource; With
By detected new channel in the BS radio resource detects, send the communication link information of being stored from MS.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1998/52760 | 1998-12-03 | ||
| KR1019980052760A KR100277104B1 (en) | 1998-12-03 | 1998-12-03 | Method for reconnection of a dropped call in mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1289517A CN1289517A (en) | 2001-03-28 |
| CN1115939C true CN1115939C (en) | 2003-07-23 |
Family
ID=19561142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99802621A Expired - Fee Related CN1115939C (en) | 1998-12-03 | 1999-12-03 | Method for reconnection of a dropped call in mobile communication system |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6633760B1 (en) |
| EP (1) | EP1053654B1 (en) |
| KR (1) | KR100277104B1 (en) |
| CN (1) | CN1115939C (en) |
| AU (1) | AU738164B2 (en) |
| CA (1) | CA2317787C (en) |
| DE (1) | DE69935971T2 (en) |
| WO (1) | WO2000033595A1 (en) |
Families Citing this family (53)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001157248A (en) * | 1999-12-01 | 2001-06-08 | Nec Saitama Ltd | Mobile terminal communication system |
| FI110352B (en) * | 2000-02-24 | 2002-12-31 | Nokia Corp | Method and arrangement to optimize the re-establishment of connections in a cellular radio system that supports real-time and non-real-time communications |
| KR100326329B1 (en) * | 2000-06-01 | 2002-03-08 | 윤종용 | Method for controlling priority access and channel assignment call in mobile telecommunication system |
| US7260401B2 (en) * | 2000-12-05 | 2007-08-21 | Qualcomm Incorporated | Method and apparatus for flexible call recovery in a wireless communication system |
| US7945266B2 (en) * | 2000-12-05 | 2011-05-17 | Qualcomm Incorporated | Method and apparatus for call recovery in a wireless communication system |
| US7567781B2 (en) * | 2001-01-05 | 2009-07-28 | Qualcomm, Incorporated | Method and apparatus for power level adjustment in a wireless communication system |
| US6845245B2 (en) * | 2000-12-22 | 2005-01-18 | Denso Corporation | Access parameter adaptation and packet data resource management using detailed mobile status information |
| US20020090947A1 (en) * | 2000-12-22 | 2002-07-11 | Frank Brooks | Automatic reconnect of dropped calls |
| KR100525547B1 (en) * | 2000-12-27 | 2005-10-31 | 엘지전자 주식회사 | Method of Automatically Reconnecting Dropped Call in Wireless Communication System |
| US6937861B2 (en) | 2001-02-13 | 2005-08-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Connection management for dual mode access terminals in a radio network |
| US20020187788A1 (en) * | 2001-06-07 | 2002-12-12 | Mckay Charles Laurence | Mobile communications system |
| US7180879B2 (en) | 2001-08-17 | 2007-02-20 | Ragulan Sinnarajah | Method and apparatus for call setup latency reduction |
| US7539127B1 (en) | 2001-12-13 | 2009-05-26 | Cisco Technology, Inc. | System and method for recovering from endpoint failure in a communication session |
| US20030114147A1 (en) * | 2001-12-13 | 2003-06-19 | Goss Stephen C. | Hold service on wireless calls |
| FR2845558B1 (en) * | 2002-10-03 | 2004-12-24 | Evolium Sas | METHOD AND DEVICE FOR MANAGING RADIO LINK INTERRUPTION IN A RADIO SHADOW AREA |
| KR100518174B1 (en) * | 2002-11-18 | 2005-10-04 | 엘지전자 주식회사 | Method for automaically re-generating a call of the mobile communication terminal |
| KR100493108B1 (en) * | 2003-01-29 | 2005-06-02 | 삼성전자주식회사 | Call processing service method in a traffic-channel congestion state |
| KR100526496B1 (en) * | 2003-02-07 | 2005-11-08 | 삼성전자주식회사 | Method for automatically calling of mobile phone |
| GB2399985B (en) * | 2003-03-25 | 2005-05-25 | Nec Technologies | Method of network acquisition and related cellular radio communication device |
| US7228145B2 (en) * | 2003-05-21 | 2007-06-05 | Avaya Technology Corp. | Dropped call continuation |
| US20050048981A1 (en) * | 2003-08-27 | 2005-03-03 | Vinod Anupam | Method and apparatus for reconnecting dropped wireless calls |
| CN100438680C (en) * | 2004-01-07 | 2008-11-26 | 华为技术有限公司 | Method for coordinating call-off rate and communication resource availability for communication system |
| US7130619B2 (en) * | 2004-01-20 | 2006-10-31 | Lucent Technologies Inc. | Mobile-originated reconnection of dropped wireless calls |
| US7983148B1 (en) | 2004-07-12 | 2011-07-19 | Avaya Inc. | Disaster recovery via alternative terminals and partitioned networks |
| US7233788B2 (en) * | 2004-07-20 | 2007-06-19 | San Disk Il Ltd. | Recovering from a disconnected phone call |
| US7493103B2 (en) * | 2004-07-22 | 2009-02-17 | International Business Machines Corporation | Method and apparatus to transfer data and detect weak signals |
| US7773517B2 (en) | 2004-11-19 | 2010-08-10 | Research In Motion Limited | Method and system for identifying degradation of a media service |
| US20060111099A1 (en) * | 2004-11-19 | 2006-05-25 | Research In Motion Limited | Method and system for self-terminating a media service due to an out-of-coverage condition |
| US7349690B2 (en) * | 2004-11-19 | 2008-03-25 | Research In Motion Limited | Out-of-coverage service termination using proxy |
| US8295838B2 (en) | 2004-11-19 | 2012-10-23 | Research In Motion Limited | Method and system for predicting service drop in a wireless network |
| US8620314B2 (en) * | 2005-03-10 | 2013-12-31 | Qualcomm Incorporated | Apparatus and methods for determining connection quality of a wireless device on a wireless communications network |
| US7561692B2 (en) * | 2006-02-27 | 2009-07-14 | Alvarion Ltd. | Method of authenticating mobile terminal |
| KR100943578B1 (en) * | 2006-03-31 | 2010-02-23 | 삼성전자주식회사 | Method and apparatus for handover signaling in a communication system |
| US7818003B2 (en) * | 2006-05-12 | 2010-10-19 | Microsoft Corporation | Communication device auto negotiate reconnect |
| US8144587B2 (en) * | 2006-08-22 | 2012-03-27 | Embarq Holdings Company, Llc | System and method for load balancing network resources using a connection admission control engine |
| CN101132611B (en) * | 2006-08-24 | 2012-04-04 | 华为技术有限公司 | Method and terminal for controlling connection reconstruction in long-term evolution system |
| WO2008028502A1 (en) * | 2006-09-05 | 2008-03-13 | Siemens Home And Office Communication Devices Gmbh & Co. Kg | Method for handling a disconnection |
| US7974610B2 (en) * | 2006-11-17 | 2011-07-05 | Comverse Ltd. | Persistence of interrupted calls |
| JP4778409B2 (en) * | 2006-12-01 | 2011-09-21 | 富士通株式会社 | Mobile device, base station apparatus, and communication control method |
| US8644811B2 (en) * | 2007-04-11 | 2014-02-04 | Cisco Technology, Inc. | System, method, and apparatus for avoiding call drop for a wireless phone |
| CN102395124B (en) * | 2008-06-07 | 2014-02-19 | 华为技术有限公司 | Call switching method, call establishment method, call switching device and call establishment device |
| US8731533B2 (en) * | 2009-03-03 | 2014-05-20 | Peter Roach | Methods and apparatuses for reconnecting calls with quality problems or reconnecting dropped calls |
| JP5522985B2 (en) * | 2009-06-30 | 2014-06-18 | パナソニック株式会社 | Communication apparatus, communication system, and session control method |
| US9432861B1 (en) | 2010-05-19 | 2016-08-30 | Sprint Spectrum L.P. | Method and system for determining whether to discontinue transmission of a reverse link signal |
| US9432860B1 (en) | 2010-05-19 | 2016-08-30 | Sprint Spectrum L.P. | Method and system for responding to a reception failure of a reverse link signal |
| US9088512B1 (en) | 2012-04-18 | 2015-07-21 | Sprint Spectrum L.P. | Method and system for signaling a wait time before discontinuing transmission of a reverse link signal |
| US8831591B2 (en) * | 2012-04-30 | 2014-09-09 | Verizon Patent And Licensing Inc. | Automatic reconnection of a dropped call |
| US9401834B1 (en) | 2014-06-12 | 2016-07-26 | Sprint Spectrum L.P. | Control over call connection in response to call-teardown request |
| US9769647B2 (en) * | 2016-02-22 | 2017-09-19 | General Motors Llc | Managing remote provisioning at a wireless device |
| CN112887000B (en) | 2016-05-31 | 2022-07-15 | 中兴通讯股份有限公司 | Information feedback method, device and system |
| CN110089097B (en) * | 2016-12-23 | 2023-04-07 | 意大利电信股份公司 | Call collision resolution in a communication network |
| US10516777B1 (en) * | 2018-09-11 | 2019-12-24 | Qualcomm Incorporated | Enhanced user experience for voice communication |
| US11356555B1 (en) * | 2021-07-30 | 2022-06-07 | Zoom Video Communications, Inc. | Message-based interactive voice response menu reconnection |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2071027A1 (en) * | 1991-06-26 | 1992-12-27 | Eiji Kito | Mobile communication system wherein a base station tranfers to another an identifier for a cell of call origination |
| JPH0537456A (en) * | 1991-07-31 | 1993-02-12 | Nec Corp | Call reconnecting system |
| EP0656166B1 (en) * | 1993-05-20 | 2001-08-29 | Telefonaktiebolaget Lm Ericsson | Reestablishment of call after disconnect |
| US5664007A (en) * | 1995-03-06 | 1997-09-02 | Samadi; Behrokh | Method and apparatus for providing continuation of a communication call across multiple networks |
| US5646978A (en) * | 1995-04-27 | 1997-07-08 | Lucent Technologies Inc. | Method and apparatus for providing interswitch handover in personal communication services systems |
| US6215782B1 (en) * | 1996-12-20 | 2001-04-10 | Lucent Technologies Inc. | Method for reconnecting calls in a wireless telecommunications system |
| US6032040A (en) * | 1997-01-24 | 2000-02-29 | Lucent Technologies Inc. | Method and system for autoreconnect of wireless calls |
| US6249681B1 (en) * | 1997-04-01 | 2001-06-19 | Nokia Mobile Phones Ltd. | Method and apparatus for packet data call re-establishment in a telecommunications system |
| US5995830A (en) * | 1997-04-09 | 1999-11-30 | At&T Wireless Services Inc. | System and method for processing dropped calls |
| JPH10327462A (en) * | 1997-05-23 | 1998-12-08 | Matsushita Electric Ind Co Ltd | Radio telephone set |
| JP3019061B2 (en) * | 1997-06-27 | 2000-03-13 | 日本電気株式会社 | Mobile communication system and radio channel control method therefor |
| US6292551B1 (en) * | 1998-02-04 | 2001-09-18 | Avaya Technology Corp. | Call reestablishment system |
| US6246872B1 (en) * | 1998-05-06 | 2001-06-12 | Nortel Networks Limited | Mobile switching centre and method for handling a dropped connection between a mobile station and a basestation transceiver |
| US6275706B1 (en) * | 1998-11-09 | 2001-08-14 | Telefonaktiebolaget L M Ericsson | Mobile telecommunications network and method for implementing and identifying hierarchical overlapping radio coverage areas |
| KR100277131B1 (en) * | 1998-12-03 | 2001-01-15 | 윤종용 | Method of automatically reconnecting a dropped call in a mobile communication system |
| US6175733B1 (en) * | 1999-03-05 | 2001-01-16 | Motorola, Inc. | Method for recovering communication service |
| US6445918B1 (en) * | 1999-11-01 | 2002-09-03 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for saving dropped calls |
| US6445921B1 (en) * | 1999-12-20 | 2002-09-03 | Koninklijke Philips Electronics N.V. | Call re-establishment for a dual mode telephone |
-
1998
- 1998-12-03 KR KR1019980052760A patent/KR100277104B1/en not_active IP Right Cessation
-
1999
- 1999-12-03 CN CN99802621A patent/CN1115939C/en not_active Expired - Fee Related
- 1999-12-03 US US09/454,807 patent/US6633760B1/en not_active Expired - Lifetime
- 1999-12-03 EP EP99958505A patent/EP1053654B1/en not_active Expired - Lifetime
- 1999-12-03 CA CA002317787A patent/CA2317787C/en not_active Expired - Fee Related
- 1999-12-03 WO PCT/KR1999/000733 patent/WO2000033595A1/en active IP Right Grant
- 1999-12-03 DE DE69935971T patent/DE69935971T2/en not_active Expired - Lifetime
- 1999-12-03 AU AU15858/00A patent/AU738164B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP1053654A1 (en) | 2000-11-22 |
| AU738164B2 (en) | 2001-09-13 |
| US6633760B1 (en) | 2003-10-14 |
| KR100277104B1 (en) | 2001-01-15 |
| DE69935971T2 (en) | 2007-09-06 |
| WO2000033595A1 (en) | 2000-06-08 |
| KR20000037934A (en) | 2000-07-05 |
| DE69935971D1 (en) | 2007-06-14 |
| CN1289517A (en) | 2001-03-28 |
| CA2317787C (en) | 2004-10-12 |
| EP1053654B1 (en) | 2007-05-02 |
| CA2317787A1 (en) | 2000-06-08 |
| AU1585800A (en) | 2000-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1115939C (en) | Method for reconnection of a dropped call in mobile communication system | |
| CN1136755C (en) | Method of automatically reconnecting a dropped call in a mobile communication | |
| CN100345396C (en) | Method for performing a handoff in a mobile communication system | |
| CN1121100C (en) | Reconnection of dropped call in mobile communication system | |
| CN1311708C (en) | Honeycomb telephone system and method for executing flexible switch between systems | |
| CN1231088C (en) | Method and apparatus for paging and responding to page in a mobile radio communications | |
| CN1788435A (en) | WCDMA mobile communication system | |
| CN1663310A (en) | Selective processing of the common control channel | |
| CN101047984A (en) | Method and system for converting radio resource control state | |
| CN1387376A (en) | Method for reselecting cellularity in cellular system of mobile radio communication in packet mode | |
| AU751276B2 (en) | Method of automatically reconnecting a dropped call in a mobile communication system | |
| CN1209936C (en) | Charging method of mobile communication system | |
| US7013159B2 (en) | Power control method for a mobile station | |
| CN1925440A (en) | Transfer method | |
| CN1870817A (en) | Method for providing message interaction in user message service | |
| CN1816201A (en) | Method for equalization of paging time-slot load in mobile telecommunication system | |
| CN1780467A (en) | Method for shortening switching time delay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030723 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |